uvm_fault(0xffffffff8253beb0, 0xffff800000a2f000, 0, 1) -> e kernel: page fault trap, code=0 Stopped at uvm_unmap_remove+0x3eb: movq 0x100(%r15),%r15 ddb> ddb> set $lines = 0 ddb> set $maxwidth = 0 ddb> show panic kernel page fault uvm_fault(0xffffffff8253beb0, 0xffff800000a2f000, 0, 1) -> e uvm_unmap_remove(ffff800000a2ef00,0,1ef000,ffff800015943a90,0,1) at uvm_unmap_remove+0x3eb uvmspace_dused sys/uvm/uvm_map.c:501 [inline] uvm_unmap_remove(ffff800000a2ef00,0,1ef000,ffff800015943a90,0,1) at uvm_unmap_remove+0x3eb sys/uvm/uvm_map.c:2225 end trace frame: 0xffff800015943b40, count: 0 ddb> trace uvm_unmap_remove(ffff800000a2ef00,0,1ef000,ffff800015943a90,0,1) at uvm_unmap_remove+0x3eb uvmspace_dused sys/uvm/uvm_map.c:501 [inline] uvm_unmap_remove(ffff800000a2ef00,0,1ef000,ffff800015943a90,0,1) at uvm_unmap_remove+0x3eb sys/uvm/uvm_map.c:2225 uvm_share(ffff800000a2ef00,0,7,fffffd803f012000,20000000,200000) at uvm_share+0x55b vm_impl_init_vmx(ffff80001597aa28,ffff80001492c290) at vm_impl_init_vmx+0xf1 sys/arch/amd64/amd64/vmm.c:1269 vm_create(ffff800000a27800,ffff80001492c290) at vm_create+0x193 vm_impl_init sys/arch/amd64/amd64/vmm.c:1384 [inline] vm_create(ffff800000a27800,ffff80001492c290) at vm_create+0x193 sys/arch/amd64/amd64/vmm.c:1173 VOP_IOCTL(fffffd803a976270,c5005601,ffff800000a27800,1,fffffd803f7c69c0,ffff80001492c290) at VOP_IOCTL+0x88 sys/kern/vfs_vops.c:291 vn_ioctl(fffffd802dec2258,c5005601,ffff800000a27800,ffff80001492c290) at vn_ioctl+0xb7 sys/kern/vfs_vnops.c:533 sys_ioctl(ffff80001492c290,ffff800015943ee8,ffff800015943f30) at sys_ioctl+0x5b9 syscall(ffff800015943fb0) at syscall+0x507 sys/arch/amd64/amd64/trap.c:555 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x986acd0bed0, count: -9 ddb> show registers rdi 0 rsi 0 rbp 0xffff800015943a60 rbx 0 rdx 0x2543 __ALIGN_SIZE+0x1543 rcx 0xffff800016d5b000 rax 0xffff800000a2ef00 r8 0 r9 0x1 r10 0xa5e2c732692f8931 r11 0x1a6157a725f79ba1 r12 0 r13 0xfffffd8029a30a88 r14 0x10000 __ALIGN_SIZE+0xf000 r15 0xffff800000a2ef00 rip 0xffffffff818c51eb uvm_unmap_remove+0x3eb cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff8000159439b0 ss 0x10 uvm_unmap_remove+0x3eb: movq 0x100(%r15),%r15 ddb> show proc PROC (syz-executor.1) pid=2906 stat=onproc flags process=0 proc=4000000 pri=81, usrpri=81, nice=20 forw=0xffffffffffffffff, list=0xffff80001492d8c8,0xffffffff825770b0 process=0xffff8000ffff77b0 user=0xffff80001593f000, vmspace=0xfffffd803f012000 estcpu=31, cpticks=1, pctcpu=0.0 user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 23400 493648 63004 0 2 0 syz-executor.1 23400 379257 63004 0 3 0x4000080 poll syz-executor.1 *23400 2906 63004 0 7 0x4000000 syz-executor.1 77930 522228 2448 0 3 0x3000 suspend syz-executor.0 77930 520954 2448 0 2 0x4081000 syz-executor.0 2448 448825 57358 0 3 0x82 nanosleep syz-executor.0 60260 274294 1 0 3 0x100083 ttyin getty 63004 243720 57358 0 3 0x82 nanosleep syz-executor.1 32266 171643 0 0 3 0x14200 bored sosplice 57358 518768 16715 0 3 0x82 thrsleep syz-fuzzer 57358 461945 16715 0 3 0x4000082 nanosleep syz-fuzzer 57358 418143 16715 0 3 0x4000082 thrsleep syz-fuzzer 57358 126049 16715 0 3 0x4000082 thrsleep syz-fuzzer 57358 429622 16715 0 3 0x4000082 kqread syz-fuzzer 57358 101163 16715 0 3 0x4000082 thrsleep syz-fuzzer 57358 192660 16715 0 3 0x4000082 thrsleep syz-fuzzer 57358 171525 16715 0 3 0x4000082 thrsleep syz-fuzzer 16715 305669 85652 0 3 0x10008a pause ksh 85652 151214 59343 0 3 0x92 select sshd 59343 229708 1 0 3 0x80 select sshd 71033 196095 1270 73 3 0x100090 kqread syslogd 1270 308127 1 0 3 0x100082 netio syslogd 68356 323114 1 77 3 0x100090 poll dhclient 12446 278018 1 0 3 0x80 poll dhclient 55261 11514 0 0 2 0x14200 zerothread 3274 92581 0 0 3 0x14200 aiodoned aiodoned 61943 157113 0 0 3 0x14200 syncer update 16496 235417 0 0 3 0x14200 cleaner cleaner 86233 138410 0 0 3 0x14200 reaper reaper 85642 121079 0 0 3 0x14200 pgdaemon pagedaemon 83609 369837 0 0 3 0x14200 bored crynlk 56047 315415 0 0 3 0x14200 bored crypto 96895 449517 0 0 3 0x40014200 acpi0 acpi0 20830 508695 0 0 3 0x14200 bored softnet 35461 267785 0 0 3 0x14200 bored systqmp 61562 436417 0 0 3 0x14200 bored systq 20206 5656 0 0 3 0x40014200 bored softclock 57880 348372 0 0 3 0x40014200 idle0 86086 382205 0 0 3 0x14200 bored smr 1 76015 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb> show all locks No such command ddb> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 9516 6358K 7439K 78643K 12639 0 pcb 13 9K 9K 78643K 152 0 rtable 116 8K 8K 78643K 488 0 ifaddr 107 21K 21K 78643K 198 0 counters 19 16K 16K 78643K 19 0 ioctlops 1 2K 2K 78643K 68 0 iov 0 0K 32K 78643K 104 0 mount 1 1K 1K 78643K 1 0 vnodes 1225 77K 77K 78643K 1827 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 9 0 VM map 13 3K 3K 78643K 18 0 sem 12 0K 1K 78643K 237 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1794 195K 288K 78643K 12646 0 file desc 6 17K 25K 78643K 516 0 sigio 0 0K 0K 78643K 20 0 proc 48 38K 63K 78643K 551 0 subproc 32 2K 2K 78643K 85 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 54 0 in_multi 136 5K 5K 78643K 199 0 ether_multi 1 0K 0K 78643K 3 0 mrt 0 0K 0K 78643K 5 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 54 238K 238K 78643K 54 0 exec 0 0K 1K 78643K 289 0 pagedep 1 8K 8K 78643K 1 0 inodedep 1 32K 32K 78643K 1 0 newblk 1 0K 0K 78643K 1 0 VM swap 7 26K 26K 78643K 7 0 UVM amap 133 103K 104K 78643K 2282 0 UVM aobj 47 2K 2K 78643K 49 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 116 0 NDP 14 0K 0K 78643K 39 0 temp 142 3019K 3104K 78643K 15735 0 kqueue 0 0K 0K 78643K 6 0 SYN cache 2 16K 16K 78643K 2 0 ddb> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle arp 64 16 0 8 1 0 1 1 0 8 0 rtpcb 80 88 0 86 1 0 1 1 0 8 0 rtentry 112 104 0 59 2 0 2 2 0 8 0 unpcb 120 403 0 393 2 1 1 2 0 8 0 syncache 264 12 0 12 5 4 1 1 0 8 1 tcpqe 32 117 0 117 4 3 1 1 0 8 1 tcpcb 544 403 0 395 3 1 2 2 0 8 1 ipq 40 7 0 7 2 1 1 1 0 8 1 ipqe 40 149 0 149 2 1 1 1 0 8 1 inpcb 280 1111 0 1094 4 2 2 4 0 8 0 rttmr 72 2 0 2 1 1 0 1 0 8 0 nd6 48 15 0 12 1 0 1 1 0 8 0 ppxss 1128 6 0 6 4 4 0 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 521 0 314 17 2 15 16 0 8 0 art_table 32 522 0 314 3 0 3 3 0 8 0 art_node 16 103 0 62 1 0 1 1 0 8 0 sysvmsgpl 40 46 0 23 1 0 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 235 0 225 1 0 1 1 0 8 0 shmpl 112 47 0 2 2 0 2 2 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 2144 0 750 46 0 46 46 0 8 0 ffsino 240 2144 0 750 83 0 83 83 0 8 0 nchpl 144 3044 0 1442 60 0 60 60 0 8 0 uvmvnodes 72 2678 0 0 49 0 49 49 0 8 0 vnodes 208 2678 0 0 141 0 141 141 0 8 0 namei 1024 9272 0 9272 1 0 1 1 0 8 1 vcpupl 1984 10 0 0 2 0 2 2 0 8 0 vmpool 520 16 0 5 1 0 1 1 0 8 0 scsiplug 64 1 0 1 1 0 1 1 0 8 1 scxspl 192 10163 0 10163 9 8 1 6 0 8 1 plimitpl 152 50 0 43 1 0 1 1 0 8 0 sigapl 432 679 0 665 2 0 2 2 0 8 0 futexpl 56 14873 0 14873 1 0 1 1 0 8 1 knotepl 112 147 0 128 1 0 1 1 0 8 0 kqueuepl 104 148 0 142 1 0 1 1 0 8 0 pipepl 128 478 0 459 2 0 2 2 0 8 1 fdescpl 424 680 0 665 2 0 2 2 0 8 0 filepl 120 5726 0 5617 7 2 5 5 0 8 1 lockfpl 104 171 0 170 1 0 1 1 0 8 0 lockfspl 48 58 0 57 1 0 1 1 0 8 0 sessionpl 112 21 0 11 1 0 1 1 0 8 0 pgrppl 48 27 0 17 1 0 1 1 0 8 0 ucredpl 96 615 0 608 1 0 1 1 0 8 0 zombiepl 144 666 0 665 1 0 1 1 0 8 0 processpl 864 695 0 665 4 0 4 4 0 8 0 procpl 632 1362 0 1322 4 0 4 4 0 8 0 sosppl 128 108 0 105 1 0 1 1 0 8 0 sockpl 384 1631 0 1604 13 7 6 7 0 8 3 mcl64k 65536 110 0 110 4 3 1 4 0 8 1 mcl16k 16384 16 0 16 2 1 1 1 0 8 1 mcl12k 12288 17 0 17 2 1 1 1 0 8 1 mcl9k 9216 1 0 1 1 1 0 1 0 8 0 mcl8k 8192 35 0 35 1 0 1 1 0 8 1 mcl4k 4096 62 0 62 2 1 1 1 0 8 1 mcl2k2 2112 11 0 11 5 4 1 1 0 8 1 mcl2k 2048 68801 0 68755 16 9 7 13 0 8 0 mtagpl 80 27 0 10 2 1 1 1 0 8 0 mbufpl 256 114974 0 114788 28 15 13 20 0 8 0 bufpl 280 8720 0 3524 372 0 372 372 0 8 0 anonpl 16 127092 0 98813 137 23 114 114 0 62 0 amapchunkpl 152 4375 0 4186 20 12 8 11 0 158 0 amappl16 192 5295 0 3705 110 30 80 80 0 8 0 amappl15 184 58 0 54 1 0 1 1 0 8 0 amappl14 176 125 0 121 1 0 1 1 0 8 0 amappl12 160 246 0 242 2 1 1 1 0 8 0 amappl11 152 184 0 170 1 0 1 1 0 8 0 amappl10 144 16 0 14 1 0 1 1 0 8 0 amappl9 136 603 0 600 1 0 1 1 0 8 0 amappl8 128 147 0 119 1 0 1 1 0 8 0 amappl7 120 111 0 99 1 0 1 1 0 8 0 amappl6 112 182 0 172 1 0 1 1 0 8 0 amappl5 104 391 0 379 1 0 1 1 0 8 0 amappl4 96 856 0 823 1 0 1 1 0 8 0 amappl3 88 197 0 188 1 0 1 1 0 8 0 amappl2 80 4452 0 4375 3 1 2 3 0 8 0 amappl1 72 22505 0 22048 26 16 10 20 0 8 0 amappl 80 1682 0 1625 3 1 2 2 0 84 0 dma4096 4096 1 0 1 1 1 0 1 0 8 0 dma256 256 6 0 6 1 1 0 1 0 8 0 dma128 128 253 0 253 1 1 0 1 0 8 0 dma64 64 6 0 6 1 1 0 1 0 8 0 dma32 32 7 0 7 1 1 0 1 0 8 0 dma16 16 18 0 17 1 0 1 1 0 8 0 aobjpl 64 48 0 2 1 0 1 1 0 8 0 uaddrrnd 24 696 0 665 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 696 0 665 1 0 1 1 0 8 0 vmmpekpl 168 8643 0 8610 2 0 2 2 0 8 0 vmmpepl 168 93963 0 91083 164 38 126 141 0 357 0 vmsppl 272 679 0 665 2 1 1 2 0 8 0 pdppl 4096 1398 0 1350 9 2 7 7 0 8 0 pvpl 32 310055 0 277546 285 22 263 263 0 265 0 pmappl 200 695 0 670 2 0 2 2 0 8 0 extentpl 40 46 0 29 1 0 1 1 0 8 0 phpool 112 174 0 37 5 0 5 5 0 8 0